I figure there are only 3 reasons why the MPs behave this way.
1. They don't know any better.
2. They don't give a sh!t about "decorum & manners."
3. Both of the above.
In any case, perhaps they - the ones who make our laws - should be subject to a series of "time outs, with meaning" when they misbehave. The list of offences and punishments could look something like this: (preliminary only; subject to additions)
1. Raising one's voice above a specified decibel level - 3 days in an anger management workshop.
2. Raising one's hands/arms to make a point - 5 days doing street clean-up in Ottawa during summer, shoveling snow for senior citizens in winter.
3. Uttering a veiled threat to a fellow MP - 7 consecutive days cleaning toilets and washing bed pans in a hospital.
4. Showing any form of sarcasm or disrespect for any fellow MP - 5 days (any season) in a newly-erected "Dunk the MP" booth set up on the grounds of the House of Commons. This would also be a good tourist attraction and a new source of revenue for the government. Suggested fee: $3.00 per throw, plus GST & HST. Or, 5 throws for $12.00.
5. Shouting, talking, interjecting, or otherwise interfering when someone else is talking - a public spanking of no less than 5 minutes duration, same location as the "Dunk the MP" booth. Separate admission fee ($2.00 plus GST & HST) required. Children 12 and under - free.
This resolution would of course require a public referendum as it would not make it through the House in the normal fashion. But, if passed it would likely quiet things down in a hurry.
Sound silly? Well, no sillier than the bullsh!t that is performed for the CPAC cameras on a daily basis now by our federal law-makers.